John edward touch



(No Model.) 2 Sheets-Sheet 1. J. E. TOUCH. GEARING.

No. 488,373. Patented Dec; 20, 1892.

(No Model.) 2 Sheets-Sheet 2.

J.. E. TOUGH.

GEARING. No. 488,373, Patented'Dec. 20, 1892.

zflp ineuu'em jawed??? v I v Z27 11% W T NORRIS PETERS c0. PMQT LITHQ,wAsnmc'rcM u c a single barrel; for in such pumps the lift i NI'IESTATES Permit prion.

J OH EDW'ARD TOUCH, OF CHRISTCHURCH, NEW ZEALAND.

(BEARING.

SPECIFICATION forming part of Letters Patent No. 488,373, dated December20, 1892.

Application filed December 31, 1891. Serial No. 416.744. No model.)

T0 00% whom it may concern.-

Be it known that I, J OHN EDWARD TOUCH, engineer, a British subject,residing at Sydenham, Christchurch, in the Colony of New Zealand, haveinvented a new and useful Improvement in Gearing for Driving Pumps, ofwhich the following is a specification.

My invention relates to improvements in gearing for driving pumps, andhas for its objects transmitting the driving power more efficiently andwith simpler mechanism. It will be known that in driving pumps whichhave a reciprocating motion the work to be done is unevenly distributedthroughout the delivery and the return stroke, more especially in pumpswhich have single action and generally takes place during one stroke inwhich the power is applied to lifting the whole weight, but during theother stroke the power required is small, being chiefly employed inreturning the rods and bucket ready for the next lift. I11 windmills andWater wheels and Wh ere motive power whether eifectively used or not isbeing constantly supplied great waste of power takes place on the returnstroke of the pump without a corresponding useful effect, and severaldevices have been made use of and suggested to utilize and distributethe power more equally, and the object of my invention is to effect thisby more simple means. I attain these objects by the mechanismillustrated in the accompanying drawings, in which,

Figure 1. is an elevation showing my improved gearing,in which twodriving pinions with varying radii are employed and arranged side byside and two segments of driving Wheels with Varying radii are made togear into the same and in such a manner and position as to give a slowlift to the pump. Fig. 2. is a plan of the same. Fig. 3. is a side viewof the same.

Referring to the drawings, a indicates the wind wheel shaft carrying thepinions A and A, which gear into the segments 13 and B,

respectively, and which segments are fixed to the shaft b and revolvewith it.

C is a connecting rod driven by the segment B and B and communicating areciprocating motion to the pump bucket through the vertical rod d.

It will thus be seen that my invention consists in so designing andarranging the gearing that in one complete delivery and return stroke ofthe pump or revolution ofthe segments B and B, which produce thesaiddelivery and return strokes, the windmill shaft on which the pinions Aand A are fixed makes two revolutions, thus increasing the power andconsequently decreasing the speed of the pump; but the pinions A and Aare fixed relatively to one another in such a position that the teeth onthe pinion (A) which have the smallest radius from the axle commence togear with the teeth on the segment (B) having the largest radius fromits axle, thus giving a great increase of power in lifting at the halfstroke of the pump, but gradually diminishingsuch power to the end ofthe stroke, after which the. return stroke commences, until at the halfreturn stroke the teeth having the largest radius from the axle onpinion A gear into the teeth having the smallest radius on the segment13, thus allowing the smallest amount of power to be used and thequickest speed attained on the return stroke. I thus attain in a simplemanner one revolution of the driven pump wheel to two revolutions of thedriving pinion, and this varied in such a manner throughout therevolutions that very great power is available to lift and deliver, anda proportionally small power exerted in returning for a fresh lift; thatmy improved gearing not only alters the speed of the delivery and returnstroke of the pump, and consequently the power exerted on the same; butwill enable the stroke of the pump to be slackened and the revolution ofthe windmill to be proportionally increased, also by increasing thenumber of pinions and proportionally increasing the size and number ofthe driven segments, any desired propornecting rod 0 with wheels AA andsegments tion of the speeds may be obtained. B and B substantially asdescribed herein 1 am aware that some of the advantages in andillustrated in the accompanying drawings. gearin sou ht to be effectedby me have been 5 obtained 1); others in several ways, all more EDWARDTOUCH or less complicated, but Witnesses:

What I claim as novel and useful and de- GEO. T. BOOTH,

sire to secure by Letters Patent is, Manufactumer, Ohm'stchm'ch, N. Z.

In a Windmill the combination of a wind- H. GREIG,

[0 mill shaft aand actuating 1 0d 01, and con- Commercial Tmvelev",Clwistchurch.

